Verzeichnisstruktur phpBB-3.3.15
- Veröffentlicht
- 28.08.2024
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user_notifications_table_remove_duplicates.php
01 <?php
02 /**
03 *
04 * This file is part of the phpBB Forum Software package.
05 *
06 * @copyright (c) phpBB Limited <https://www.phpbb.com>
07 * @license GNU General Public License, version 2 (GPL-2.0)
08 *
09 * For full copyright and license information, please see
10 * the docs/CREDITS.txt file.
11 *
12 */
13
14 namespace phpbb\db\migration\data\v32x;
15
16 class user_notifications_table_remove_duplicates extends \phpbb\db\migration\migration
17 {
18 static public function depends_on()
19 {
20 return array(
21 '\phpbb\db\migration\data\v32x\user_notifications_table_temp_index',
22 );
23 }
24
25 public function update_data()
26 {
27 return array(
28 array('custom', array(array($this, 'remove_duplicates'))),
29 );
30 }
31
32 public function remove_duplicates()
33 {
34 $insert_buffer = new \phpbb\db\sql_insert_buffer($this->db, $this->table_prefix . 'user_notifications');
35
36 $sql = "SELECT item_type, item_id, user_id, method, MAX(notify) AS notify
37 FROM {$this->table_prefix}user_notifications
38 GROUP BY item_type, item_id, user_id, method
39 HAVING COUNT(item_type) > 1";
40
41 $result = $this->sql_query($sql);
42 while ($row = $this->db->sql_fetchrow($result))
43 {
44 // Delete the duplicate entries
45 $this->sql_query("DELETE FROM {$this->table_prefix}user_notifications
46 WHERE user_id = {$row['user_id']}
47 AND item_type = '{$row['item_type']}'
48 AND method = '{$row['method']}'");
49
50 // And re-insert as a single one
51 $insert_buffer->insert($row);
52 }
53 $this->db->sql_freeresult($result);
54 }
55 }
56